A cobpoiiatioit



A. G. KINYON.

LOCOMOTIVE FIRE BOX.

APPLICATlON ElLED 0504. 191a.

Patntod June 24, 1919 \J 15,301?!" Z G KINYON, OF GHICAGC, ELLEN 01$, ASSIGNGB TS PG'WDERED COAL ENGI- Iul'EEEING 8c EQUEPMEIHI' COXVIEAHY, 0F CHICAGB, 1LLIN 213, is, COB-POMTIGN To all whom it may concern;

lie it known that l, ALONZQ G :KIIITE'GN, a men of the United States, residing Chicago, in the county of Cook and State of lllinois, have invented certain new and use ful Improvements in Locomotive l ire- Bones, of which the following is a specification.

- My invention relates more particularly to a fire-box for locomotives or other boilers designed to burn powdered fuel. "When such fuel is thoroughly mixed with and supported in the proper amount of air for complete combustion, and introduced into a chamber heated to the ignition temperature, it at once ignites at the very entrance into the chamber and combustion takes place that point throughout the mass of mingled and fuel, so that the hottest part of the flame produced is adjacent the inlet into the chamber. The heat is so intense that the in combustible mineral contents of the fuel. are immediately limited and form a slag which, being in exceedingly minute drops at first, apt to be carried a considerahle distance by the heated gaseous products of cmnhus tion. As a result of this action unless provision is made to the contrary the drops of formed in the lire-box of a boiler furuses are to a large extent carried along and deposited on the relatively cool boiler tubes flues coating the surfaces thereof to such an extent that the efficiency of the boiler is materially reduced,

It is the object of my invention to avoid or prevent the deposition of slag in the boiler tubes in a boiler heated by powdered fuel. And for this purpose I have invented an improved fire-box in which the course of the gaseous products of combustion is such that the slag is deposited therefrom and colloci/ed in a suitable receptacle from which it may he from time to time removed or discharged.

In the accompanying drawing 1 have shown and in the following specification described a preferred form of my invention,

but it will be understood that the specific disclosure is for the purpose of erzernplification only, and that the scope of the inveniann in which I have endeavored to anguish it from the prior art so far as known to me without, however, relinquishing or abundoning any portion or feature thereof LGCOMUTIVE- FIRE-BOX.

uric 23d, Elli}.

Application filed E'lecember l, 1916. Serial .riiefiul.

upon the line XX of Fig. 1, and the left 7 half of said section being upon the plane of the bent line M-M of Fig. 1.

The shell of the boiler is indicated at 'A, the boiler tubes or lines at a, and the wall of the fire-box within the boiler at B. The mud-ring of the boiler surrounds the firebox as usual at K, and a doorway or opening is provided at P through the Water space of the boiler as shown, but is normally closely sealed during the operation of the fu "race. A pipe or conduit 3 extends from some suitable source mixed air and powdered fuel and connects with a burner or entrance liue extending through the boiler space as shown, and preferably riveted or otherwise secured to the shell of the boiler and the firebox vwall to brace the same. The lower portion of the fire-box F is lined with fire-brick or 1ire-clay, and the bottom wall L thereof is sloped inwardly from its periphery to the slag discharge Q. so that liquids telling upon the floor Will run to said opening. Beneath the opening Q is a slag pan G which may be of suitable design to receive the liquid slag from the as for example by means of a flexible pipe N with a fan, not shown, which. supplies the air for admixture with the powdered fuel. By means of this air 1551s the air to support combustion is preheated and when the englue is in motion, in case the device is used upon a locomotive, the funnel shaped opening assists the draft of the fan in an ob vious manner.

its seen more particularly in Fig. 1 the downward direction of the burner D directs the flaming against the bottom of the ire-box, and order to assist this action, to prevent the direct passage of the gases to the boilerfl and to provide a circuitous route for the gases in which the slag drops may have opportunity to increase in size by aggregation and to be deposited by impinge ment, I provide baiile walls 0, S and R- of fire-brick or other refractory material. The Wall 0 is substantially parallel to the rear wall of the fire-box and but slightly inclined to the vertical, forming a slightly inclined flue E leading from the burner directly to the bottom of the firebox. From the bottom of the wall 0 the bafile or partition S extends toward the front of the fire-box leaving however a passage between the forward edge of the same and the front wall of the fire-box, through which the gases from the vertical passage E and the horizontal passage F successively pass to the assage H which is formed between said ba e S and a bafile or partition R extending at an inclination from the lower part of the front wall of the fire-box toward partition 0, but terminating short thereof to provide an opening through which the products of combustion may pass and flow forwardly therethrough to the boiler tubes or lines. The upper brick of the Wall 0 is supported upon the pipes W, which are bent at U and the lire-brick formed with a simi lar recess to prevent the displacement of the wall 0 along said pipes, and the latter also serve at their forward ends to support the partition or bafile R composed of fire-brick resting thereon. The lower part of the wall 0 and the entire baflie S are supported upon pipes F which are bent as shown near their forward ends to provide an offset to prevent the brick slipping forward along the same.

the upper part of the It will now be seen that the combustible mixture entering the fire-box through the burner D is immediately ignited and brought to a very. high temperature whereby the particles of slag are melted to form drops. The downward direction of the mixture from the burner, assisted by the weight of the is condensed and deposited upon said walls,

and by reason of the inclination thereof flows to the floor of the fire-box and through the slag opening and collects in the slag pan, whence it may be dumped by means of the hinged doors.

I claim: A In a locomotive fire box, upper and lower sets of longitudinally extending inclined supporting pipes, upper and lower baffle walls supported on the respective sets of pipes and a substantially upright wall near the front of the fire box but spaced from the front to provide a passage adjacent the same, a burner for pulverized fuel communicating with said passage at the top thereof, and a hearth having an opening directly beneath said passage.

ALONZO G. KINYON. 

